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- 2022 Hyundai IONIQ 5 RWD / 2016 Suzuki Vitara AWD
Very good point.This is not a comment on this particular case (I have no idea whether MB's examination was good or bad) but there are well-established techniques for carrying out engineering failure analysis (EFA) that can reliably separate cause from effect. One of the most crucial elements of such analysis is Data Preservation - in other words that as much evidence as possible is collected from the failed equipment before it is disturbed in any way. Once it's been disturbed (by moving or dismantling it - both of which have occurred in this case) subsequent Failure Analysis becomes more difficult and less reliable.
The photo's (presumably taken immediately after the event?) and any contemporaneous records that the OP has will be useful input to any further investigation. The car itself that has been moved and dismantled will undoubtedly yield information, but whether it will lead to an irrefutable cause being identified is another matter.